There's a certain class of arguments that prompts in me the response "but what if it's true, though".
This seems to me a rather devastating and conclusive argument and also one which would do exactly zero to convince the other side, and I'm not sure how to cross that gap.
Conversation
Replying to
assume they’re getting some need met from believing it’s false and see if you can supply an alternative way to get that need met; if not, stop talking about it